Insulator.



T. W. BEATTY.

INSULATOR.

APPLICATION FILED Mms. |911.

Patented Ju1y-23, 1918.

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THOMAS W. BEATTY, OF CAREY, OHIO.

INSULATOR.

Specification of Letters Patent.

Patented July 23, 1918.

Application filed August 9, 1917. Serial No. 185,354.

To all whom it may concern:

Bo it known that l, TnoMAs lV. BEATTY, a citizen of the United States, residing at Carey, in the county of lVyandot and State of Ohio, have invented certain new and useful Improvements in Insulators, of which the following is a specilication.

This invention relates to insulators and is particularly directed to that type ot structure known as a. knob used by electricians in supporting lighting` wires, etc., within buildings.

The main object of my invention resides in a structure of knob whereby the component parts are so held in assembled relation that they are very convenient or' handling by the electrician or other user. My arrangement consists essentially in yicldingly holding the sections ot the knob in assembled abutting relation so that the parts may be readily supported to insert an electric wire when desired. By having the parts thus assembled, the user has the added advantage ot not assembling the sections upon the job or prior to use, these sections all ycoming assembled so that when one is grasped, a complete knob is had.

Further advantages of my invention, are that the parts are assembled to permit a relative pivotal separation between sections, that the electric wire may be easily snapped in position because of a certain entrance portion provided by me and others which will become more apparent after the following detailed description of the accompanying sheet of drawings, in which similar characters of reference designate corresponding parts, and in which:

Figure 1 is a perspective lview oit the cap portion of my insulator shown separately,

Fig. 2 is a perspective view of the base portion of my insulator also shown separately,

Fig. 8 is a vertical cross section ot an assembled insulator showing the spring clip in its applied position,

Fig. 4 is a bottom view of the structure shown in Fig. 3 and,

Fig. 5 is a view in perspective of the spring clip used by me.y

A complete knob is usually formed ot base and cap portions, sometimes these parts being formed identical so as to be interchangeable and sometimes not. In the present illustration, the cap is .designated by the reference numeral 1 and the base by the reference numeral 2. The latter is provided with a wire receiving groove 3 preferably corrugated and also a centrally disposed'longitudinally extending opening a by means of which the parts are secured in position. Similarly, the cap 1 is provided with a wire receiving grooveA 5 andan attaching hole k6 which is designed, when the parts are in assembled relation, to register with the opening et. This latter opening leads into an enlarged countersunk portion 7 in the bottom of the base, while the cap opening is slightly eountersunk as shown at 8. The base section is provided with a centrally disposed upstanding tongue portion 9 which merges with an arcuately shaped upstanding tongue 10 located to one side ot' the base'. The body ot' the base adjacent the arcuately formed tongue 10 is also cut out on both sides, as shown at 11 to vbe concentric with the shape of the upstanding tongue 10. The cap portion is provided with a centrally vdisposed groove 12 and a laterally olset arcuately shaped groove 13, these two grooves :being shaped to conform to the shape of the tongues 9 andlO. The bod] ofthe cap surrounding this groove is also formed to tit the corresponding meeting surface of the base as is indicated. Both the base and cap sections are provided with an additional longitudinally extending opening 14 and 15 respectively, these latter openings passing through that portion of both the base and cap sections carrying' the arcuately shaped tongues and grooves. The upper portion of the'cap is cut out as is shown at 16 and the lower portion ot' the opening 1st in the base is slightly enlarged as shown at 17, both of these enlarged openings being for the purpose o'faccomniodating the spring clip 18 shown in detail in Fig. 5. This spring clip is designed for the purpose of yieldingly holding the two insulator parts in assembled and abutting relation and the arcuately shaped tongues and grooves are so shaped to permit a pivotal supporting movement between the two sections which is resisted by the infiuencev of the spring 18. The entire tongue and groove formation also prevents a relativetwist between the insulator parts. This Vspring clip is formed of a wire prefer ably shaped to elbow form as shown at 19 at its upper end to rest within the cut out portion 16 and whose terminal portion 20 eX- tends beyond the downwardly extending legs 21.' This arrangement Vis resorted to in order to bring the bearing `point of the spring on the cap at a point between the openings 6 and 15. The lower ends of the legs are bent laterally as shown at 22 and these iitinto the enlarged cut out portion 17 in the base.

assembled relation within the insulator sections and the loop 19 is provided to give the desired tension for holding the insulator sections together. s f

F rom the description thus far given, it will be apparentthat by inserting the Wire spring clip, the two insulator sections are held in assembled abutting relation and because of the arcuately shaped tongue and groove structure, these parts may be given a pivotal separating movement to permit the insertion of an electric wire in the opening formed by thegrooves 3 andV 5. Normally, the two insulator sections are in abutting relation and the user need not take eX- tra precaution against losing one part or the other. Further, the entire knob may be temporarily driven into a wall or ceiling and the wire snapped in position, or the wire may be strung over a great distance as desired andthe knobs merely snapped in position to be permanently attached after the wiring job is more nearly completed. These various operationsV are left to the discretion of the workman, the various advantages thereof being merely touched upon in this speciiication.

In 'order to render the placing or snapping of an electric wire in position more easily, 1 have so formed that portion of the knob adjacent the opening'formed by the grooves 3 and 5 with an entrance portion 23. This is made by cutting away a part of Y the base portion of the knob which lies adjacent the groove 3 as is indicated, thus causing the portion 24 of the cap to present an overhanging lip. The cap is also provided with an additional lip 25 on the opposite side of the groove which seats itself in a correspondingly shaped part 26 in the base. This latter lip 25 is merely a precautionary structure to prevent the wire from accidentally coming into contact with the attaching nail or screw.

- From this latter description, it will be apparent that the electrician may very readily snap a wire in position because of the entrance groove 23. `The admission of an electric wire to the opening formed by the grooves 3 and 5 is resisted by the spring clip 3 and, therefore, the pivotal movement already described, will follow, as soon as it is attempted to snap the wire in position, no matter whether the insulator is attached temporarily to a building or not.

Y WhatsI claim is:

tween sections'for the reception of a wire,

Vand resilient means arranged to return said upon release of one of said sections. The legs 21, spring apart laterally to'securely hold the wire clip in its* 2. An Vinsulator formed of a pair of seotions aiid having a wire receiving Ygroove between sections, said sections being formed to permit a. pivotal separation of one about the other to permit the insertion of a wire, and resilient means arranged to return said sections to cooperating position afterrsuch separation upon release of one of said sections.

3. An insulator formed of a pair of sections, each having a longitudinally extend,- ing opening for receiving permanent attaching means and means entirely independent of vcooperation with said openings and arranged to remain permanently in applied position for separably holding said sections inV assembled relation.

4. An insulator formed of a pair of sections, each provided with an attaching open- Y A ing, and means entirely independent of cooperation with said openings for yieldingly holding said sections in assembled relation.

5. An insulator formed of a pair of sections each formed with an attaching opening and a wire receiving groove, and means for yieldingly holding said sections in assembled relation to permit a separating movement of one from the other to permit the insertion of a wire.

6. An insulator formed of a pair ofsections each formed with an attaching opening and a wire receiving groove, and means for yieldingly holding said sections in assembled relation to permit aV separating pivotal movement of one about the other to permit the insertion of a wire.

7 An insulator formed of a pair of sections each formed with an attaching opening and a wire receiving groove, and yielding means entirely independent of any attaching means for holding said parts in assembled relation, but permitting a separating movement for the insertion of a wire.

8. An insulator formed of a pair of sections each formed with an attaching opening and a wire receiving groove, and yielding means entirely independent of any attaching means for holding saidV parts in assembled relation, said parts being formed to permit a separating pivotal movement of one about the other to permit the insertion of a wire. v i

9. An insulator formed of a pair of sections eacli provided with an attaching opening and a wire receiving groove, and spring means located to one side of said openings for yieldingly holding said Vsections in assembled relation.

tions each provided with an attaching opening and a wire receiving groove, said sections being formed to permit a separable plvotal movement of one about the other, and spring means for holding said sections assembled normally urging said sections toward each other about said pivot.

1l. -An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, said sections being formed to permit a separable pivotal movement of one about the other, and spring means for holding said sections assembled, said spring means being effective on at least one of said sections between said pivot and the section attaching opening.

l2. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, said sections being each formed with an additional opening extending in the same general direction as said attaching openings, and spring means passing through said additional openings for holding said sections in assembled and abutting relation but permitting a yielding separation of said sections.

13. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, said sections being each formed with an additional opening extending in the same general direction as said attaching openings, and spring means passing through said additional openings for holding said sections in assembled relation, said sections being formed to permit a pivotal separating movement against the tension of said spring means.

14C. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, said sections being each formed with an additional opening extending in the same general direction as said attaching openings, and a spring clip passing' through said additional openings to yieldingly hold said sections in assembled and abutting relation, said clip being formed to bear on at least one of said sections at a point between said two openings.

l5. An insulator formed of a pair of sections each provided with ing and a wire receiving groove, said sections being each formed with an additional opening extending in the same general direction as said attaching openings, and a spring clip passing' through said additional openings to yieldingly hold said sections in assembled and abutting relation, said clip being formed to bear on at least one of said secan attaching open-y tions at a point between said two openings, said clips being also formed to permit a pivotal separating movement.

16. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, and a spring wire clip passing through said sections to yieldingly hold them in assembled abutting relation, said clip being formed with a loop at its one end, the terminal portion of which bears on one of said sections.

17. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, said sections being each formed with an additional opening extending in the same general direction as said attaching openings, that portion of said sections through openings pass being' formed to permit a ivotal movement of one section about the ot ier, and a spring wire clip passing through said additional openings to yieldingly hold said sections in assembled abutting relation, said clip being formed with a loop at its one end, the terminal portion of which bears on one of said sections.

18. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, and spring means for yieldingly holding' said sections in assembled abutting relation, said sections being formed to present an entrance space for a wire adjacent the wire receiving grooves.

19. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, one of said sections being cut away adjacent its wire groove so that the other section presents an overhanging lip.

20. An insulator formed of a pair of sections each provided with an attaching opening and a wire receiving groove, one section being' formed with a substantially centrally disposed upstanding tongue merging into an upstanding arcuatel;7 shaped tongue portion disposed at one side of said section, the body of said section adjacent said arcuately shaped tongue being also shaped to arcuate form, the other section being correspondingly shaped to lit the first named section.

In testimony whereof I aiiix my signature in presence of two witnesses.

THOMAS W. BEATTY.

Vitnesses:

Manni `W. KURTZ, ALMA BIsH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.

which said additional. 

